/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1.6rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.btn .icon {
    transition: transform .25s ease, opacity .25s ease;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(79,70,229,.25);
}

.btn-primary {
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(79, 70, 229, 0.45); }
.btn-primary:hover .icon { transform: translateX(4px); }

.btn-secondary {
    padding: 1rem 2rem;
    background: rgba(79,70,229,0.06);
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.dark .btn-secondary { background: rgba(99,102,241,0.12); }

.btn-secondary:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.btn-secondary:hover .icon { transform: translateY(-2px); }

/* Enforce single-line button labels */
.btn { white-space: nowrap; }
.btn span { white-space: nowrap; }

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.dark .card { background: rgba(30, 41, 59, 0.95); }

.card:hover { transform: translateY(-10px); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15); }

/* Social links */
.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary);
    font-size: 1.2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-link:hover { transform: translateY(-5px); background: var(--primary); color: white; box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3); }

/* Skill tags */
.skill-tag {
    padding: 0.75rem 1.25rem;
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.dark .skill-tag { background: rgba(99, 102, 241, 0.2); border-color: rgba(99, 102, 241, 0.3); }

.skill-tag:hover { background: var(--gradient-primary); color: white; transform: translateY(-3px); box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3); }

/* Form elements */
.form-group { margin-bottom: 1.5rem; }

.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--dark); }
.dark .form-group label { color: var(--light); }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid rgba(79, 70, 229, 0.2);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.5);
    color: var(--dark);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.dark .form-group input,
.dark .form-group textarea { background: rgba(30, 41, 59, 0.5); color: var(--light); border-color: rgba(99, 102, 241, 0.3); }

.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }

.form-group textarea { resize: vertical; min-height: 120px; }